diff --git a/Curved_kernel_via_analysis_2/include/CGAL/Curved_kernel_via_analysis_2/Curved_kernel_via_analysis_2_functors.h b/Curved_kernel_via_analysis_2/include/CGAL/Curved_kernel_via_analysis_2/Curved_kernel_via_analysis_2_functors.h
index dfd5d8aa2e1..72840761df3 100755
--- a/Curved_kernel_via_analysis_2/include/CGAL/Curved_kernel_via_analysis_2/Curved_kernel_via_analysis_2_functors.h
+++ b/Curved_kernel_via_analysis_2/include/CGAL/Curved_kernel_via_analysis_2/Curved_kernel_via_analysis_2_functors.h
@@ -27,7 +27,7 @@ CGAL_BEGIN_NAMESPACE
 namespace CGALi {
 
 #ifndef CERR
-#define CKvA_DEBUG_PRINT_CERR
+//#define CKvA_DEBUG_PRINT_CERR
 #ifdef CKvA_DEBUG_PRINT_CERR
 #define CERR(x) std::cerr << x
 #else